A diverse group of folks are vacationing in Northern California and are taking helicopters up into the mountains for a week long guided hike. Unfortunately the group picks the day that the Earth's ozone layer has become so depleted that the sun's radiation is particularly strong above 5000 feet and the radiation causes all the animals to go crazy and start attacking the humans.

Animals start killing off our hikers one by one and the group becomes fractured because of two camps of people, one led by the hikers, Paul Jenson (Leslie Neilsen in an off type role where he plays a bad guy) and the other led by the guide and local Native American (Ansara). Of course, not staying together is the worse thing they can do but who can make smart choices when all the animals are attacking and it seems like the end of the world?

"Day of the Animals" is a fun, nature strikes back horror movie from the '70s. The characters are over the top, the animals are attacking the horrific fun has just begun!